Oil-filter



(No Modl.) 2 Sheets-Shea; 1.

1 D. R. ELLIS.

OIL FILTER.

: No. 410,319. Patented Sept. 3, 1889 N, Perm: PhaloLithug-Jpher.Wmhinghm. 0.0.

' 2 Sheets-'Shet 2, 1)., R. ELLIS. OIL FILTER.

(No Model.)

N0.- 410,319. V Patented Sept. 3, 1889. f

N. PETERS. HMO-Ulhognpber. Wnhingmn. o. r;

UNIT D 'STATES JPATENT O FICE.

DAVID RL ELIJIS, OF CHICAGO, ILLINOIS.

"OIL-FIILTER.

SPECIFICATIQN forming part of Letters Patent No. 410,319, datedSeptember 3, 1889. 1 Application filed PebruaryZB, 18891 $erial No.301,515. (No model.) i

To all whom/ it may concern;

Beit known that I, DAVID R. ELLIS, of Chi cago, in the'county of oookaneState of Illinois, have invented certain new and useful Improvements inOil -lilt ering Apparatus; and I do hereby declare that the following isafull, clear, and exactdescription thereof, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

This invention relates toa combined tank and filter for oil, beingintended more especially for the filtration of oil for lubricatingpurposes. g

Theinven tionhas for its object to provide an apparatus of a simpleconstruction, capable of prompt and continuous operation and adapted tobe conveniently cleansed.

The invention comprises several features of improvement; which will beunderstood from the following description of the accompanying drawings,and which are the appended claims.

In the said drawings, Figure 1 is a side elevation of the tank andfilter.

Fig; 3 is a central vertical section in the plane of the line 33 of Fig.2. Fig.4 is a fragmentary vertical section in the line 4 4 of Fig. 2,being a central verticalsection of the interior tubes of the apparatus.Fig. 5 is a horizontal section in the line 5 5 of Fig. 4.

A represents a cylindric tank, intended to contain a body of water andthe filtered oil upon the water, the proper level of the water beingindicated by the permanent line marked on the exterior surface of thetank. Just above this water-line is located a faucet a, for drawing offthe oil, and with the extreme bottom of the tank is connected a secondfaucet a for drawing oif sediment which may accumulate therein. The tankis provided with a water glass or gage A, extending from a point belowthe water-line a to any desired height. This glass is not intended tocommunicate with the body of oil in the tank, but communicates at thetop with the atmosphere, either without the tank or within the sameabove the highest level which the oil shall reach. Such communicationwith the air is'indicated by the orifice a opening from pointed out inFig. 2 is a top View with a portion of the cover removed.

the glass through the upper fitting or support of said glass." I I Thetank is provided witha suitable cover, here shown as consisting of twohalf-lids afaf, hinged to a central cross-bar a.

Within the tank A are two vertical tubes B and (J, and within each ofthese'tubes is a smaller tube,marked B. and C, respectively. Both thetubes B and O extend to or nearly to the bottom of the tank A, aud t-heinner tubes B and C eXtend to or nearly to the bottoms of the tubes Band O, communicating wit-hthe latter through suitable perforations orequivalent openings at their lower ends.

Within the tube B and around the tube B are placed suitable filteringmaterials. In this instance I), Fig. 4, may indicate a bodyof charcoaloccupying the lower third or half of this annular space, and b aquantity of cotton placed above the charcoal and extending nearly to thetop of the tube. Theinner tube 13 has a suitable funnel D at its upperend, which is preferably detachable, and may be either within or outsidethe tank, but which is shown in the present instance "as exteriorthereto-and connecting removably with the tubeB through a hole in thetop of the half- .lid (1 'Within this funnel D is removably 8o placedastrainer D. Near the top of the "tube Bthe latter has a spoutoroverflow-pipe b havingits open outer end arranged over the mouth orupper open end of the tube 0. The tube 0 has a discharge-pipe a, leadingfrom a point near its upper end to a point near the bottom of the tank,or below the water-line ct.

In this construction impure oil poured through the strainer D and funnelD into the 0 tube B passes to the bottom of the latter and out throughthe communicating openings into the bottom of the outer tube B. Fromthis pointit rises through the filtering material and, being more orless completely cleansed thereby, passes out through the spout 12 intothe tube 0. The outer tube 0 is supplied with a quantity of water, andthe oil passing down through the tube 0 enters the tube 0 through thebot-tom openings of the former, zoo

and, rising through the water to the height wn of the pipe 0, isconducted thereby to the lower part or water-space of the tank A. Ris ing through the water in said tank it accumulates 011 the surface thereofto any extent to which it may be supplied at the inlet-funnel, and isdrawn off aswanted at the faucetct'. The oil is further clarified in itspassage through the water and is practically pure when it has reachedthe water-surface in the main chamber of the tank.

A faucet 0 leads from the bottom of the tube 0, by means of which thesediment may be withdrawn therefrom.

The tube B is made removable from the tankAfor the purpose ofconveniently changing the filtering material therein, and for itssupport while in the tank the stationary eyeor ring 19 is provided forits middle or upper portion, while its lower portion is sustained by aplate E, attached to the lower end of the fixed tube 0. The tube C atits lower end and this plate E are sustained in place by rigidconnection with the pipe leading from the bottom of said tube 0 to thefaucet c. The upper part of the tube 0 is steadied, as shown, by theyoke 0 fastened to the wall of the tank.

Both the tubes 0 and B are shown detachable from the tubes 0 and B tofacilitate the cleansing, and are suitably supported within the saidouter tubes by any appropriate means. In the case of the tube B it isaccomplished by means of cross-bars I), attached to the interior wallsof the outer tube B, and having central eyes or passages for the innertube.

In the case of the inner tube 0 this is accomplished by means of thefunnel-shaped top 0 thereof, which fills the top of the outer tube 0,and the fixed arms 0", attached to the lower end of said inner tube.

It is manifest that if less complete clarification is permissible thetube 0 and its con tained parts may be omitted and that in that case thedischarge or overflow pipe 19 leading from the tube B, may be extendeddownward to conduct the oil direct-1y from said tube to the bottom ofthe tank A, as now does the 5 corresponding pipe 0, leading from thetube (3.

It will be observed that the water-glass shows only water, but that thesurface of the water in said glass will nevertheless indicate theheight, or substantially the height, of the oil within the tank, if thetank be first supplied with water to the water-line a, the differencebetween this mark and the higher level of the water in the glassrepresenting the amount of oil in the tank. The waterline a should besufficiently above the connection of the water-glass at its lower endwith the interior of the water-space of the tank to prevent the passageof oil into the glass under any proper use of the filter.

I claim as my invention 1. The combination of the tank A, filtertube Bwithin the tank, oil-supply tube B, and a conduit or conduits leadingfrom the top of the tube B to the lower part of the tank A forconducting the oil which rises through the filtering material in saidtube B to a point below the water-line in the tank.

2. The combination, with a tankA, filtertube B, supply-tube B, andfiltering material occupying the space between the tubes B and B, of asecond tube G, its interior open-bottomed tube 0, the pipe deliveringfrom the upper end of the tube B in the top of the tube G and thatleading from the top of the tube O to a point below the water-line ofthe tank, substantially as described.

3. The combination,with the tank A, tubes B and O, the interior tubes Band G, and the pipe leading from the tube B to the tube 0, of the pipeleading from the tube 0 to a point in the tank A below the water-linethereof, and the external faucet leading respectively from the bottom ofthe tube B, from the bottom of the tank A, and from the tank A above thewater-line, substantially as described.

In testimony that I claim the foregoing as my invention I affix mysignature in presence of two witnesses.

DAVID R. ELLIS.

itnesses:

G. CLARENCE PooLE, GEO. WV. HIGGINS, Jr.

